期刊
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
卷 24, 期 6, 页码 2435-2443出版社
SPRINGER
DOI: 10.1007/s11665-015-1496-z
关键词
cavitation; HVAF; HVOF; sand slurry erosion; WC-10Co-4Cr
资金
- Project of Training Targets of Young Key Teachers of Common College & University in Hunan Province
- Project of Hunan Province Science and Technology Program [2013WK3027]
Two WC-10Co-4Cr coatings were deposited by high-velocity oxygen fuel (HVOF) and high-velocity air fuel (HVAF) spray processes, respectively, and their basic mechanical properties, cavitation and sand slurry erosion resistances were investigated. The results show that the HVAF-sprayed WC-10Co-4Cr coating exhibited a lower degree of decarburization and better properties in terms of hardness, fracture toughness, porosity, cavitation and sand slurry erosion resistances than those of the HVOF-sprayed WC-10Co-4Cr coatings, respectively. Therefore, HVAF-sprayed WC-10Co-4Cr coatings may be better employed for the protection of hydro-turbine component surfaces against cavitation and sand slurry erosion.
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